The hex color #1a349e is a dark color. The web-safe version is Hex
#333399. A complementary color is
#E5CB61. The grayscale version is
#4F4F4F. A 20% lighter version of the original color is
#4D67D1, and Hex
#00016B is the 20% darker color. If the color is saturated by 10%, you get
#1531A6. If the color is desaturated by 10%, the color
#1F3796 is obtained.